Separation techniques - Phoenix Hoyle | Library

5

Match the labels

Other Answer Choices:

Chromatography paper

solvent

Beaker

line in pencil

Samples

2

The bottom of paper must be ___________________
The pencil line must be ______________________
   

Other Answer Choices:

in the solvent

above the solvent

6

A
B
C
X
one dot only
two or more dots

Pure sample
Mixture

1

Sample

A
B
C
D

Safe to drink
Not safe to drink

4

Select the correct option.
Note - the more soluble a dye is the further the dot will move.
Note - the more soluble the dye the larger the Rf value will be.
Note -  the Rf value can not be more than 1.

Other Answer Choices:

True

False

1

Rf = _______ / _______ 
Rf = _______ 

1

Note - the _________  soluble a dye is the further the dot will move.
Note - the more soluble the dye the ___________  the Rf value will be.
Note -  the Rf value can not be more than ______ .

Other Answer Choices:

smaller

less

1

more

larger

0.5

1

How many dyes are there is A ______ 
How many dyes are there in B ______ 
How many dyes are there in D ______ 
How many dyes are there in X ______ 
Which dye is not found in sample X ______ 

Other Answer Choices:

1

4

C

3

B

A

2

1

Start line not drawn in ______________________ so line will _____________ 
Samples are in the ____________ so the samples will _____________ in the water instead of moving up the __________ .

Other Answer Choices:

dissolve

paper

solvent

pencil

4

Sample B did not move as sample is ___________soluble in the solvent used.
To fix this we would use a  ______________solvent, for example ____________  alcohol or propanol in which sample B _______  soluble

Other Answer Choices:

different

is not

is

ethanol